/*!
 * QUnit 1.14.0
 * http://qunitjs.com/
 *
 * Copyright 2013 jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2014-01-31T16:40Z
 */
;_qunit_version = "1.14.0";
(function( window ) {

  var QUnit,
      assert,
      config,
      onErrorFnPrev,
      testId = 0,
      fileName = (sourceFromStacktrace( 0 ) || "" ).replace(/(:\d+)+\)?/, "").replace(/.+\//, ""),
      toString = Object.prototype.toString,
      hasOwn = Object.prototype.hasOwnProperty,
  // Keep a local reference to Date (GH-283)
      Date = window.Date,
      setTimeout = window.setTimeout,
      clearTimeout = window.clearTimeout,
      defined = {
        document: typeof window.document !== "undefined",
        setTimeout: typeof window.setTimeout !== "undefined",
        sessionStorage: (function() {
          var x = "qunit-test-string";
          try {
            sessionStorage.setItem( x, x );
            sessionStorage.removeItem( x );
            return true;
          } catch( e ) {
            return false;
          }
        }())
      },
      /**
       * Provides a normalized error string, correcting an issue
       * with IE 7 (and prior) where Error.prototype.toString is
       * not properly implemented
       *
       * Based on http://es5.github.com/#x15.11.4.4
       *
       * @param {String|Error} error
       * @return {String} error message
       */
          errorString = function( error ) {
        var name, message,
            errorString = error.toString();
        if ( errorString.substring( 0, 7 ) === "[object" ) {
          name = error.name ? error.name.toString() : "Error";
          message = error.message ? error.message.toString() : "";
          if ( name && message ) {
            return name + ": " + message;
          } else if ( name ) {
            return name;
          } else if ( message ) {
            return message;
          } else {
            return "Error";
          }
        } else {
          return errorString;
        }
      },
      /**
       * Makes a clone of an object using only Array or Object as base,
       * and copies over the own enumerable properties.
       *
       * @param {Object} obj
       * @return {Object} New object with only the own properties (recursively).
       */
          objectValues = function( obj ) {
        // Grunt 0.3.x uses an older version of jshint that still has jshint/jshint#392.
        /*jshint newcap: false */
        var key, val,
            vals = QUnit.is( "array", obj ) ? [] : {};
        for ( key in obj ) {
          if ( hasOwn.call( obj, key ) ) {
            val = obj[key];
            vals[key] = val === Object(val) ? objectValues(val) : val;
          }
        }
        return vals;
      };


// Root QUnit object.
// `QUnit` initialized at top of scope
  QUnit = {

    // call on start of module test to prepend name to all tests
    module: function( name, testEnvironment ) {
      config.currentModule = name;
      config.currentModuleTestEnvironment = testEnvironment;
      config.modules[name] = true;
    },

    asyncTest: function( testName, expected, callback ) {
      if ( arguments.length === 2 ) {
        callback = expected;
        expected = null;
      }

      QUnit.test( testName, expected, callback, true );
    },

    test: function( testName, expected, callback, async ) {
      var test,
          nameHtml = "<span class='test-name'>" + escapeText( testName ) + "</span>";

      if ( arguments.length === 2 ) {
        callback = expected;
        expected = null;
      }

      if ( config.currentModule ) {
        nameHtml = "<span class='module-name'>" + escapeText( config.currentModule ) + "</span>: " + nameHtml;
      }

      test = new Test({
        nameHtml: nameHtml,
        testName: testName,
        expected: expected,
        async: async,
        callback: callback,
        module: config.currentModule,
        moduleTestEnvironment: config.currentModuleTestEnvironment,
        stack: sourceFromStacktrace( 2 )
      });

      if ( !validTest( test ) ) {
        return;
      }

      test.queue();
    },

    // Specify the number of expected assertions to guarantee that failed test (no assertions are run at all) don't slip through.
    expect: function( asserts ) {
      if (arguments.length === 1) {
        config.current.expected = asserts;
      } else {
        return config.current.expected;
      }
    },

    start: function( count ) {
      // QUnit hasn't been initialized yet.
      // Note: RequireJS (et al) may delay onLoad
      if ( config.semaphore === undefined ) {
        QUnit.begin(function() {
          // This is triggered at the top of QUnit.load, push start() to the event loop, to allow QUnit.load to finish first
          setTimeout(function() {
            QUnit.start( count );
          });
        });
        return;
      }

      config.semaphore -= count || 1;
      // don't start until equal number of stop-calls
      if ( config.semaphore > 0 ) {
        return;
      }
      // ignore if start is called more often then stop
      if ( config.semaphore < 0 ) {
        config.semaphore = 0;
        QUnit.pushFailure( "Called start() while already started (QUnit.config.semaphore was 0 already)", null, sourceFromStacktrace(2) );
        return;
      }
      // A slight delay, to avoid any current callbacks
      if ( defined.setTimeout ) {
        setTimeout(function() {
          if ( config.semaphore > 0 ) {
            return;
          }
          if ( config.timeout ) {
            clearTimeout( config.timeout );
          }

          config.blocking = false;
          process( true );
        }, 13);
      } else {
        config.blocking = false;
        process( true );
      }
    },

    stop: function( count ) {
      config.semaphore += count || 1;
      config.blocking = true;

      if ( config.testTimeout && defined.setTimeout ) {
        clearTimeout( config.timeout );
        config.timeout = setTimeout(function() {
          QUnit.ok( false, "Test timed out" );
          config.semaphore = 1;
          QUnit.start();
        }, config.testTimeout );
      }
    }
  };

// We use the prototype to distinguish between properties that should
// be exposed as globals (and in exports) and those that shouldn't
  (function() {
    function F() {}
    F.prototype = QUnit;
    QUnit = new F();
    // Make F QUnit's constructor so that we can add to the prototype later
    QUnit.constructor = F;
  }());

  /**
   * Config object: Maintain internal state
   * Later exposed as QUnit.config
   * `config` initialized at top of scope
   */
  config = {
    // The queue of tests to run
    queue: [],

    // block until document ready
    blocking: true,

    // when enabled, show only failing tests
    // gets persisted through sessionStorage and can be changed in UI via checkbox
    hidepassed: false,

    // by default, run previously failed tests first
    // very useful in combination with "Hide passed tests" checked
    reorder: true,

    // by default, modify document.title when suite is done
    altertitle: true,

    // by default, scroll to top of the page when suite is done
    scrolltop: true,

    // when enabled, all tests must call expect()
    requireExpects: false,

    // add checkboxes that are persisted in the query-string
    // when enabled, the id is set to `true` as a `QUnit.config` property
    urlConfig: [
      {
        id: "noglobals",
        label: "Check for Globals",
        tooltip: "Enabling this will test if any test introduces new properties on the `window` object. Stored as query-strings."
      },
      {
        id: "notrycatch",
        label: "No try-catch",
        tooltip: "Enabling this will run tests outside of a try-catch block. Makes debugging exceptions in IE reasonable. Stored as query-strings."
      }
    ],

    // Set of all modules.
    modules: {},

    // logging callback queues
    begin: [],
    done: [],
    log: [],
    testStart: [],
    testDone: [],
    moduleStart: [],
    moduleDone: []
  };

// Initialize more QUnit.config and QUnit.urlParams
  (function() {
    var i, current,
        location = window.location || { search: "", protocol: "file:" },
        params = location.search.slice( 1 ).split( "&" ),
        length = params.length,
        urlParams = {};

    if ( params[ 0 ] ) {
      for ( i = 0; i < length; i++ ) {
        current = params[ i ].split( "=" );
        current[ 0 ] = decodeURIComponent( current[ 0 ] );

        // allow just a key to turn on a flag, e.g., test.html?noglobals
        current[ 1 ] = current[ 1 ] ? decodeURIComponent( current[ 1 ] ) : true;
        if ( urlParams[ current[ 0 ] ] ) {
          urlParams[ current[ 0 ] ] = [].concat( urlParams[ current[ 0 ] ], current[ 1 ] );
        } else {
          urlParams[ current[ 0 ] ] = current[ 1 ];
        }
      }
    }

    QUnit.urlParams = urlParams;

    // String search anywhere in moduleName+testName
    config.filter = urlParams.filter;

    // Exact match of the module name
    config.module = urlParams.module;

    config.testNumber = [];
    if ( urlParams.testNumber ) {

      // Ensure that urlParams.testNumber is an array
      urlParams.testNumber = [].concat( urlParams.testNumber );
      for ( i = 0; i < urlParams.testNumber.length; i++ ) {
        current = urlParams.testNumber[ i ];
        config.testNumber.push( parseInt( current, 10 ) );
      }
    }

    // Figure out if we're running the tests from a server or not
    QUnit.isLocal = location.protocol === "file:";
  }());

  extend( QUnit, {

    config: config,

    // Initialize the configuration options
    init: function() {
      extend( config, {
        stats: { all: 0, bad: 0 },
        moduleStats: { all: 0, bad: 0 },
        started: +new Date(),
        updateRate: 1000,
        blocking: false,
        autostart: true,
        autorun: false,
        filter: "",
        queue: [],
        semaphore: 1
      });

      var tests, banner, result,
          qunit = id( "qunit" );

      if ( qunit ) {
        qunit.innerHTML =
            "<h1 id='qunit-header'>" + escapeText( document.title ) + "</h1>" +
                "<h2 id='qunit-banner'></h2>" +
                "<div id='qunit-testrunner-toolbar'></div>" +
                "<h2 id='qunit-userAgent'></h2>" +
                "<ol id='qunit-tests'></ol>";
      }

      tests = id( "qunit-tests" );
      banner = id( "qunit-banner" );
      result = id( "qunit-testresult" );

      if ( tests ) {
        tests.innerHTML = "";
      }

      if ( banner ) {
        banner.className = "";
      }

      if ( result ) {
        result.parentNode.removeChild( result );
      }

      if ( tests ) {
        result = document.createElement( "p" );
        result.id = "qunit-testresult";
        result.className = "result";
        tests.parentNode.insertBefore( result, tests );
        result.innerHTML = "Running...<br/>&nbsp;";
      }
    },

    // Resets the test setup. Useful for tests that modify the DOM.
    /*
     DEPRECATED: Use multiple tests instead of resetting inside a test.
     Use testStart or testDone for custom cleanup.
     This method will throw an error in 2.0, and will be removed in 2.1
     */
    reset: function() {
      var fixture = id( "qunit-fixture" );
      if ( fixture ) {
        fixture.innerHTML = config.fixture;
      }
    },

    // Safe object type checking
    is: function( type, obj ) {
      return QUnit.objectType( obj ) === type;
    },

    objectType: function( obj ) {
      if ( typeof obj === "undefined" ) {
        return "undefined";
      }

      // Consider: typeof null === object
      if ( obj === null ) {
        return "null";
      }

      var match = toString.call( obj ).match(/^\[object\s(.*)\]$/),
          type = match && match[1] || "";

      switch ( type ) {
        case "Number":
          if ( isNaN(obj) ) {
            return "nan";
          }
          return "number";
        case "String":
        case "Boolean":
        case "Array":
        case "Date":
        case "RegExp":
        case "Function":
          return type.toLowerCase();
      }
      if ( typeof obj === "object" ) {
        return "object";
      }
      return undefined;
    },

    push: function( result, actual, expected, message ) {
      if ( !config.current ) {
        throw new Error( "assertion outside test context, was " + sourceFromStacktrace() );
      }

      var output, source,
          details = {
            module: config.current.module,
            name: config.current.testName,
            result: result,
            message: message,
            actual: actual,
            expected: expected
          };

      message = escapeText( message ) || ( result ? "okay" : "failed" );
      message = "<span class='test-message'>" + message + "</span>";
      output = message;

      if ( !result ) {
        expected = escapeText( QUnit.jsDump.parse(expected) );
        actual = escapeText( QUnit.jsDump.parse(actual) );
        output += "<table><tr class='test-expected'><th>Expected: </th><td><pre>" + expected + "</pre></td></tr>";

        if ( actual !== expected ) {
          output += "<tr class='test-actual'><th>Result: </th><td><pre>" + actual + "</pre></td></tr>";
          output += "<tr class='test-diff'><th>Diff: </th><td><pre>" + QUnit.diff( expected, actual ) + "</pre></td></tr>";
        }

        source = sourceFromStacktrace();

        if ( source ) {
          details.source = source;
          output += "<tr class='test-source'><th>Source: </th><td><pre>" + escapeText( source ) + "</pre></td></tr>";
        }

        output += "</table>";
      }

      runLoggingCallbacks( "log", QUnit, details );

      config.current.assertions.push({
        result: !!result,
        message: output
      });
    },

    pushFailure: function( message, source, actual ) {
      if ( !config.current ) {
        throw new Error( "pushFailure() assertion outside test context, was " + sourceFromStacktrace(2) );
      }

      var output,
          details = {
            module: config.current.module,
            name: config.current.testName,
            result: false,
            message: message
          };

      message = escapeText( message ) || "error";
      message = "<span class='test-message'>" + message + "</span>";
      output = message;

      output += "<table>";

      if ( actual ) {
        output += "<tr class='test-actual'><th>Result: </th><td><pre>" + escapeText( actual ) + "</pre></td></tr>";
      }

      if ( source ) {
        details.source = source;
        output += "<tr class='test-source'><th>Source: </th><td><pre>" + escapeText( source ) + "</pre></td></tr>";
      }

      output += "</table>";

      runLoggingCallbacks( "log", QUnit, details );

      config.current.assertions.push({
        result: false,
        message: output
      });
    },

    url: function( params ) {
      params = extend( extend( {}, QUnit.urlParams ), params );
      var key,
          querystring = "?";

      for ( key in params ) {
        if ( hasOwn.call( params, key ) ) {
          querystring += encodeURIComponent( key ) + "=" +
              encodeURIComponent( params[ key ] ) + "&";
        }
      }
      return window.location.protocol + "//" + window.location.host +
          window.location.pathname + querystring.slice( 0, -1 );
    },

    extend: extend,
    id: id,
    addEvent: addEvent,
    addClass: addClass,
    hasClass: hasClass,
    removeClass: removeClass
    // load, equiv, jsDump, diff: Attached later
  });

  /**
   * @deprecated: Created for backwards compatibility with test runner that set the hook function
   * into QUnit.{hook}, instead of invoking it and passing the hook function.
   * QUnit.constructor is set to the empty F() above so that we can add to it's prototype here.
   * Doing this allows us to tell if the following methods have been overwritten on the actual
   * QUnit object.
   */
  extend( QUnit.constructor.prototype, {

    // Logging callbacks; all receive a single argument with the listed properties
    // run test/logs.html for any related changes
    begin: registerLoggingCallback( "begin" ),

    // done: { failed, passed, total, runtime }
    done: registerLoggingCallback( "done" ),

    // log: { result, actual, expected, message }
    log: registerLoggingCallback( "log" ),

    // testStart: { name }
    testStart: registerLoggingCallback( "testStart" ),

    // testDone: { name, failed, passed, total, runtime }
    testDone: registerLoggingCallback( "testDone" ),

    // moduleStart: { name }
    moduleStart: registerLoggingCallback( "moduleStart" ),

    // moduleDone: { name, failed, passed, total }
    moduleDone: registerLoggingCallback( "moduleDone" )
  });

  if ( !defined.document || document.readyState === "complete" ) {
    config.autorun = true;
  }

  QUnit.load = function() {
    runLoggingCallbacks( "begin", QUnit, {} );

    // Initialize the config, saving the execution queue
    var banner, filter, i, j, label, len, main, ol, toolbar, val, selection,
        urlConfigContainer, moduleFilter, userAgent,
        numModules = 0,
        moduleNames = [],
        moduleFilterHtml = "",
        urlConfigHtml = "",
        oldconfig = extend( {}, config );

    QUnit.init();
    extend(config, oldconfig);

    config.blocking = false;

    len = config.urlConfig.length;

    for ( i = 0; i < len; i++ ) {
      val = config.urlConfig[i];
      if ( typeof val === "string" ) {
        val = {
          id: val,
          label: val
        };
      }
      config[ val.id ] = QUnit.urlParams[ val.id ];
      if ( !val.value || typeof val.value === "string" ) {
        urlConfigHtml += "<input id='qunit-urlconfig-" + escapeText( val.id ) +
            "' name='" + escapeText( val.id ) +
            "' type='checkbox'" +
            ( val.value ? " value='" + escapeText( val.value ) + "'" : "" ) +
            ( config[ val.id ] ? " checked='checked'" : "" ) +
            " title='" + escapeText( val.tooltip ) +
            "'><label for='qunit-urlconfig-" + escapeText( val.id ) +
            "' title='" + escapeText( val.tooltip ) + "'>" + val.label + "</label>";
      } else {
        urlConfigHtml += "<label for='qunit-urlconfig-" + escapeText( val.id ) +
            "' title='" + escapeText( val.tooltip ) +
            "'>" + val.label +
            ": </label><select id='qunit-urlconfig-" + escapeText( val.id ) +
            "' name='" + escapeText( val.id ) +
            "' title='" + escapeText( val.tooltip ) +
            "'><option></option>";
        selection = false;
        if ( QUnit.is( "array", val.value ) ) {
          for ( j = 0; j < val.value.length; j++ ) {
            urlConfigHtml += "<option value='" + escapeText( val.value[j] ) + "'" +
                ( config[ val.id ] === val.value[j] ?
                    (selection = true) && " selected='selected'" :
                    "" ) +
                ">" + escapeText( val.value[j] ) + "</option>";
          }
        } else {
          for ( j in val.value ) {
            if ( hasOwn.call( val.value, j ) ) {
              urlConfigHtml += "<option value='" + escapeText( j ) + "'" +
                  ( config[ val.id ] === j ?
                      (selection = true) && " selected='selected'" :
                      "" ) +
                  ">" + escapeText( val.value[j] ) + "</option>";
            }
          }
        }
        if ( config[ val.id ] && !selection ) {
          urlConfigHtml += "<option value='" + escapeText( config[ val.id ] ) +
              "' selected='selected' disabled='disabled'>" +
              escapeText( config[ val.id ] ) +
              "</option>";
        }
        urlConfigHtml += "</select>";
      }
    }
    for ( i in config.modules ) {
      if ( config.modules.hasOwnProperty( i ) ) {
        moduleNames.push(i);
      }
    }
    numModules = moduleNames.length;
    moduleNames.sort( function( a, b ) {
      return a.localeCompare( b );
    });
    moduleFilterHtml += "<label for='qunit-modulefilter'>Module: </label><select id='qunit-modulefilter' name='modulefilter'><option value='' " +
        ( config.module === undefined  ? "selected='selected'" : "" ) +
        ">< All Modules ></option>";


    for ( i = 0; i < numModules; i++) {
      moduleFilterHtml += "<option value='" + escapeText( encodeURIComponent(moduleNames[i]) ) + "' " +
          ( config.module === moduleNames[i] ? "selected='selected'" : "" ) +
          ">" + escapeText(moduleNames[i]) + "</option>";
    }
    moduleFilterHtml += "</select>";

    // `userAgent` initialized at top of scope
    userAgent = id( "qunit-userAgent" );
    if ( userAgent ) {
      userAgent.innerHTML = navigator.userAgent;
    }

    // `banner` initialized at top of scope
    banner = id( "qunit-header" );
    if ( banner ) {
      banner.innerHTML = "<a href='" + QUnit.url({ filter: undefined, module: undefined, testNumber: undefined }) + "'>" + banner.innerHTML + "</a> ";
    }

    // `toolbar` initialized at top of scope
    toolbar = id( "qunit-testrunner-toolbar" );
    if ( toolbar ) {
      // `filter` initialized at top of scope
      filter = document.createElement( "input" );
      filter.type = "checkbox";
      filter.id = "qunit-filter-pass";

      addEvent( filter, "click", function() {
        var tmp,
            ol = id( "qunit-tests" );

        if ( filter.checked ) {
          ol.className = ol.className + " hidepass";
        } else {
          tmp = " " + ol.className.replace( /[\n\t\r]/g, " " ) + " ";
          ol.className = tmp.replace( / hidepass /, " " );
        }
        if ( defined.sessionStorage ) {
          if (filter.checked) {
            sessionStorage.setItem( "qunit-filter-passed-tests", "true" );
          } else {
            sessionStorage.removeItem( "qunit-filter-passed-tests" );
          }
        }
      });

      if ( config.hidepassed || defined.sessionStorage && sessionStorage.getItem( "qunit-filter-passed-tests" ) ) {
        filter.checked = true;
        // `ol` initialized at top of scope
        ol = id( "qunit-tests" );
        ol.className = ol.className + " hidepass";
      }
      toolbar.appendChild( filter );

      // `label` initialized at top of scope
      label = document.createElement( "label" );
      label.setAttribute( "for", "qunit-filter-pass" );
      label.setAttribute( "title", "Only show tests and assertions that fail. Stored in sessionStorage." );
      label.innerHTML = "Hide passed tests";
      toolbar.appendChild( label );

      urlConfigContainer = document.createElement("span");
      urlConfigContainer.innerHTML = urlConfigHtml;
      // For oldIE support:
      // * Add handlers to the individual elements instead of the container
      // * Use "click" instead of "change" for checkboxes
      // * Fallback from event.target to event.srcElement
      addEvents( urlConfigContainer.getElementsByTagName("input"), "click", function( event ) {
        var params = {},
            target = event.target || event.srcElement;
        params[ target.name ] = target.checked ?
            target.defaultValue || true :
            undefined;
        window.location = QUnit.url( params );
      });
      addEvents( urlConfigContainer.getElementsByTagName("select"), "change", function( event ) {
        var params = {},
            target = event.target || event.srcElement;
        params[ target.name ] = target.options[ target.selectedIndex ].value || undefined;
        window.location = QUnit.url( params );
      });
      toolbar.appendChild( urlConfigContainer );

      if (numModules > 1) {
        moduleFilter = document.createElement( "span" );
        moduleFilter.setAttribute( "id", "qunit-modulefilter-container" );
        moduleFilter.innerHTML = moduleFilterHtml;
        addEvent( moduleFilter.lastChild, "change", function() {
          var selectBox = moduleFilter.getElementsByTagName("select")[0],
              selectedModule = decodeURIComponent(selectBox.options[selectBox.selectedIndex].value);

          window.location = QUnit.url({
            module: ( selectedModule === "" ) ? undefined : selectedModule,
            // Remove any existing filters
            filter: undefined,
            testNumber: undefined
          });
        });
        toolbar.appendChild(moduleFilter);
      }
    }

    // `main` initialized at top of scope
    main = id( "qunit-fixture" );
    if ( main ) {
      config.fixture = main.innerHTML;
    }

    if ( config.autostart ) {
      QUnit.start();
    }
  };

  if ( defined.document ) {
    addEvent( window, "load", QUnit.load );
  }

// `onErrorFnPrev` initialized at top of scope
// Preserve other handlers
  onErrorFnPrev = window.onerror;

// Cover uncaught exceptions
// Returning true will suppress the default browser handler,
// returning false will let it run.
  window.onerror = function ( error, filePath, linerNr ) {
    var ret = false;
    if ( onErrorFnPrev ) {
      ret = onErrorFnPrev( error, filePath, linerNr );
    }

    // Treat return value as window.onerror itself does,
    // Only do our handling if not suppressed.
    if ( ret !== true ) {
      if ( QUnit.config.current ) {
        if ( QUnit.config.current.ignoreGlobalErrors ) {
          return true;
        }
        QUnit.pushFailure( error, filePath + ":" + linerNr );
      } else {
        QUnit.test( "global failure", extend( function() {
          QUnit.pushFailure( error, filePath + ":" + linerNr );
        }, { validTest: validTest } ) );
      }
      return false;
    }

    return ret;
  };

  function done() {
    config.autorun = true;

    // Log the last module results
    if ( config.previousModule ) {
      runLoggingCallbacks( "moduleDone", QUnit, {
        name: config.previousModule,
        failed: config.moduleStats.bad,
        passed: config.moduleStats.all - config.moduleStats.bad,
        total: config.moduleStats.all
      });
    }
    delete config.previousModule;

    var i, key,
        banner = id( "qunit-banner" ),
        tests = id( "qunit-tests" ),
        runtime = +new Date() - config.started,
        passed = config.stats.all - config.stats.bad,
        html = [
          "Tests completed in ",
          runtime,
          " milliseconds.<br/>",
          "<span class='passed'>",
          passed,
          "</span> assertions of <span class='total'>",
          config.stats.all,
          "</span> passed, <span class='failed'>",
          config.stats.bad,
          "</span> failed."
        ].join( "" );

    if ( banner ) {
      banner.className = ( config.stats.bad ? "qunit-fail" : "qunit-pass" );
    }

    if ( tests ) {
      id( "qunit-testresult" ).innerHTML = html;
    }

    if ( config.altertitle && defined.document && document.title ) {
      // show ✖ for good, ✔ for bad suite result in title
      // use escape sequences in case file gets loaded with non-utf-8-charset
      document.title = [
        ( config.stats.bad ? "\u2716" : "\u2714" ),
        document.title.replace( /^[\u2714\u2716] /i, "" )
      ].join( " " );
    }

    // clear own sessionStorage items if all tests passed
    if ( config.reorder && defined.sessionStorage && config.stats.bad === 0 ) {
      // `key` & `i` initialized at top of scope
      for ( i = 0; i < sessionStorage.length; i++ ) {
        key = sessionStorage.key( i++ );
        if ( key.indexOf( "qunit-test-" ) === 0 ) {
          sessionStorage.removeItem( key );
        }
      }
    }

    // scroll back to top to show results
    if ( config.scrolltop && window.scrollTo ) {
      window.scrollTo(0, 0);
    }

    runLoggingCallbacks( "done", QUnit, {
      failed: config.stats.bad,
      passed: passed,
      total: config.stats.all,
      runtime: runtime
    });
  }

  /** @return Boolean: true if this test should be ran */
  function validTest( test ) {
    var include,
        filter = config.filter && config.filter.toLowerCase(),
        module = config.module && config.module.toLowerCase(),
        fullName = ( test.module + ": " + test.testName ).toLowerCase();

    // Internally-generated tests are always valid
    if ( test.callback && test.callback.validTest === validTest ) {
      delete test.callback.validTest;
      return true;
    }

    if ( config.testNumber.length > 0 ) {
      if ( inArray( test.testNumber, config.testNumber ) < 0 ) {
        return false;
      }
    }

    if ( module && ( !test.module || test.module.toLowerCase() !== module ) ) {
      return false;
    }

    if ( !filter ) {
      return true;
    }

    include = filter.charAt( 0 ) !== "!";
    if ( !include ) {
      filter = filter.slice( 1 );
    }

    // If the filter matches, we need to honour include
    if ( fullName.indexOf( filter ) !== -1 ) {
      return include;
    }

    // Otherwise, do the opposite
    return !include;
  }

// so far supports only Firefox, Chrome and Opera (buggy), Safari (for real exceptions)
// Later Safari and IE10 are supposed to support error.stack as well
// See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
  function extractStacktrace( e, offset ) {
    offset = offset === undefined ? 3 : offset;

    var stack, include, i;

    if ( e.stacktrace ) {
      // Opera
      return e.stacktrace.split( "\n" )[ offset + 3 ];
    } else if ( e.stack ) {
      // Firefox, Chrome
      stack = e.stack.split( "\n" );
      if (/^error$/i.test( stack[0] ) ) {
        stack.shift();
      }
      if ( fileName ) {
        include = [];
        for ( i = offset; i < stack.length; i++ ) {
          if ( stack[ i ].indexOf( fileName ) !== -1 ) {
            break;
          }
          include.push( stack[ i ] );
        }
        if ( include.length ) {
          return include.join( "\n" );
        }
      }
      return stack[ offset ];
    } else if ( e.sourceURL ) {
      // Safari, PhantomJS
      // hopefully one day Safari provides actual stacktraces
      // exclude useless self-reference for generated Error objects
      if ( /qunit.js$/.test( e.sourceURL ) ) {
        return;
      }
      // for actual exceptions, this is useful
      return e.sourceURL + ":" + e.line;
    }
  }
  function sourceFromStacktrace( offset ) {
    try {
      throw new Error();
    } catch ( e ) {
      return extractStacktrace( e, offset );
    }
  }

  /**
   * Escape text for attribute or text content.
   */
  function escapeText( s ) {
    if ( !s ) {
      return "";
    }
    s = s + "";
    // Both single quotes and double quotes (for attributes)
    return s.replace( /['"<>&]/g, function( s ) {
      switch( s ) {
        case "'":
          return "&#039;";
        case "\"":
          return "&quot;";
        case "<":
          return "&lt;";
        case ">":
          return "&gt;";
        case "&":
          return "&amp;";
      }
    });
  }

  function synchronize( callback, last ) {
    config.queue.push( callback );

    if ( config.autorun && !config.blocking ) {
      process( last );
    }
  }

  function process( last ) {
    function next() {
      process( last );
    }
    var start = new Date().getTime();
    config.depth = config.depth ? config.depth + 1 : 1;

    while ( config.queue.length && !config.blocking ) {
      if ( !defined.setTimeout || config.updateRate <= 0 || ( ( new Date().getTime() - start ) < config.updateRate ) ) {
        config.queue.shift()();
      } else {
        setTimeout( next, 13 );
        break;
      }
    }
    config.depth--;
    if ( last && !config.blocking && !config.queue.length && config.depth === 0 ) {
      done();
    }
  }

  function saveGlobal() {
    config.pollution = [];

    if ( config.noglobals ) {
      for ( var key in window ) {
        if ( hasOwn.call( window, key ) ) {
          // in Opera sometimes DOM element ids show up here, ignore them
          if ( /^qunit-test-output/.test( key ) ) {
            continue;
          }
          config.pollution.push( key );
        }
      }
    }
  }

  function checkPollution() {
    var newGlobals,
        deletedGlobals,
        old = config.pollution;

    saveGlobal();

    newGlobals = diff( config.pollution, old );
    if ( newGlobals.length > 0 ) {
      QUnit.pushFailure( "Introduced global variable(s): " + newGlobals.join(", ") );
    }

    deletedGlobals = diff( old, config.pollution );
    if ( deletedGlobals.length > 0 ) {
      QUnit.pushFailure( "Deleted global variable(s): " + deletedGlobals.join(", ") );
    }
  }

// returns a new Array with the elements that are in a but not in b
  function diff( a, b ) {
    var i, j,
        result = a.slice();

    for ( i = 0; i < result.length; i++ ) {
      for ( j = 0; j < b.length; j++ ) {
        if ( result[i] === b[j] ) {
          result.splice( i, 1 );
          i--;
          break;
        }
      }
    }
    return result;
  }

  function extend( a, b ) {
    for ( var prop in b ) {
      if ( hasOwn.call( b, prop ) ) {
        // Avoid "Member not found" error in IE8 caused by messing with window.constructor
        if ( !( prop === "constructor" && a === window ) ) {
          if ( b[ prop ] === undefined ) {
            delete a[ prop ];
          } else {
            a[ prop ] = b[ prop ];
          }
        }
      }
    }

    return a;
  }

  /**
   * @param {HTMLElement} elem
   * @param {string} type
   * @param {Function} fn
   */
  function addEvent( elem, type, fn ) {
    if ( elem.addEventListener ) {

      // Standards-based browsers
      elem.addEventListener( type, fn, false );
    } else if ( elem.attachEvent ) {

      // support: IE <9
      elem.attachEvent( "on" + type, fn );
    } else {

      // Caller must ensure support for event listeners is present
      throw new Error( "addEvent() was called in a context without event listener support" );
    }
  }

  /**
   * @param {Array|NodeList} elems
   * @param {string} type
   * @param {Function} fn
   */
  function addEvents( elems, type, fn ) {
    var i = elems.length;
    while ( i-- ) {
      addEvent( elems[i], type, fn );
    }
  }

  function hasClass( elem, name ) {
    return (" " + elem.className + " ").indexOf(" " + name + " ") > -1;
  }

  function addClass( elem, name ) {
    if ( !hasClass( elem, name ) ) {
      elem.className += (elem.className ? " " : "") + name;
    }
  }

  function removeClass( elem, name ) {
    var set = " " + elem.className + " ";
    // Class name may appear multiple times
    while ( set.indexOf(" " + name + " ") > -1 ) {
      set = set.replace(" " + name + " " , " ");
    }
    // If possible, trim it for prettiness, but not necessarily
    elem.className = typeof set.trim === "function" ? set.trim() : set.replace(/^\s+|\s+$/g, "");
  }

  function id( name ) {
    return defined.document && document.getElementById && document.getElementById( name );
  }

  function registerLoggingCallback( key ) {
    return function( callback ) {
      config[key].push( callback );
    };
  }

// Supports deprecated method of completely overwriting logging callbacks
  function runLoggingCallbacks( key, scope, args ) {
    var i, callbacks;
    if ( QUnit.hasOwnProperty( key ) ) {
      QUnit[ key ].call(scope, args );
    } else {
      callbacks = config[ key ];
      for ( i = 0; i < callbacks.length; i++ ) {
        callbacks[ i ].call( scope, args );
      }
    }
  }

// from jquery.js
  function inArray( elem, array ) {
    if ( array.indexOf ) {
      return array.indexOf( elem );
    }

    for ( var i = 0, length = array.length; i < length; i++ ) {
      if ( array[ i ] === elem ) {
        return i;
      }
    }

    return -1;
  }

  function Test( settings ) {
    extend( this, settings );
    this.assertions = [];
    this.testNumber = ++Test.count;
  }

  Test.count = 0;

  Test.prototype = {
    init: function() {
      var a, b, li,
          tests = id( "qunit-tests" );

      if ( tests ) {
        b = document.createElement( "strong" );
        b.innerHTML = this.nameHtml;

        // `a` initialized at top of scope
        a = document.createElement( "a" );
        a.innerHTML = "Rerun";
        a.href = QUnit.url({ testNumber: this.testNumber });

        li = document.createElement( "li" );
        li.appendChild( b );
        li.appendChild( a );
        li.className = "running";
        li.id = this.id = "qunit-test-output" + testId++;

        tests.appendChild( li );
      }
    },
    setup: function() {
      if (
      // Emit moduleStart when we're switching from one module to another
          this.module !== config.previousModule ||
            // They could be equal (both undefined) but if the previousModule property doesn't
            // yet exist it means this is the first test in a suite that isn't wrapped in a
            // module, in which case we'll just emit a moduleStart event for 'undefined'.
            // Without this, reporters can get testStart before moduleStart  which is a problem.
              !hasOwn.call( config, "previousModule" )
          ) {
        if ( hasOwn.call( config, "previousModule" ) ) {
          runLoggingCallbacks( "moduleDone", QUnit, {
            name: config.previousModule,
            failed: config.moduleStats.bad,
            passed: config.moduleStats.all - config.moduleStats.bad,
            total: config.moduleStats.all
          });
        }
        config.previousModule = this.module;
        config.moduleStats = { all: 0, bad: 0 };
        runLoggingCallbacks( "moduleStart", QUnit, {
          name: this.module
        });
      }

      config.current = this;

      this.testEnvironment = extend({
        setup: function() {},
        teardown: function() {}
      }, this.moduleTestEnvironment );

      this.started = +new Date();
      runLoggingCallbacks( "testStart", QUnit, {
        name: this.testName,
        module: this.module
      });

      /*jshint camelcase:false */


      /**
       * Expose the current test environment.
       *
       * @deprecated since 1.12.0: Use QUnit.config.current.testEnvironment instead.
       */
      QUnit.current_testEnvironment = this.testEnvironment;

      /*jshint camelcase:true */

      if ( !config.pollution ) {
        saveGlobal();
      }
      if ( config.notrycatch ) {
        this.testEnvironment.setup.call( this.testEnvironment, QUnit.assert );
        return;
      }
      try {
        this.testEnvironment.setup.call( this.testEnvironment, QUnit.assert );
      } catch( e ) {
        QUnit.pushFailure( "Setup failed on " + this.testName + ": " + ( e.message || e ), extractStacktrace( e, 1 ) );
      }
    },
    run: function() {
      config.current = this;

      var running = id( "qunit-testresult" );

      if ( running ) {
        running.innerHTML = "Running: <br/>" + this.nameHtml;
      }

      if ( this.async ) {
        QUnit.stop();
      }

      this.callbackStarted = +new Date();

      if ( config.notrycatch ) {
        this.callback.call( this.testEnvironment, QUnit.assert );
        this.callbackRuntime = +new Date() - this.callbackStarted;
        return;
      }

      try {
        this.callback.call( this.testEnvironment, QUnit.assert );
        this.callbackRuntime = +new Date() - this.callbackStarted;
      } catch( e ) {
        this.callbackRuntime = +new Date() - this.callbackStarted;

        QUnit.pushFailure( "Died on test #" + (this.assertions.length + 1) + " " + this.stack + ": " + ( e.message || e ), extractStacktrace( e, 0 ) );
        // else next test will carry the responsibility
        saveGlobal();

        // Restart the tests if they're blocking
        if ( config.blocking ) {
          QUnit.start();
        }
      }
    },
    teardown: function() {
      config.current = this;
      if ( config.notrycatch ) {
        if ( typeof this.callbackRuntime === "undefined" ) {
          this.callbackRuntime = +new Date() - this.callbackStarted;
        }
        this.testEnvironment.teardown.call( this.testEnvironment, QUnit.assert );
        return;
      } else {
        try {
          this.testEnvironment.teardown.call( this.testEnvironment, QUnit.assert );
        } catch( e ) {
          QUnit.pushFailure( "Teardown failed on " + this.testName + ": " + ( e.message || e ), extractStacktrace( e, 1 ) );
        }
      }
      checkPollution();
    },
    finish: function() {
      config.current = this;
      if ( config.requireExpects && this.expected === null ) {
        QUnit.pushFailure( "Expected number of assertions to be defined, but expect() was not called.", this.stack );
      } else if ( this.expected !== null && this.expected !== this.assertions.length ) {
        QUnit.pushFailure( "Expected " + this.expected + " assertions, but " + this.assertions.length + " were run", this.stack );
      } else if ( this.expected === null && !this.assertions.length ) {
        QUnit.pushFailure( "Expected at least one assertion, but none were run - call expect(0) to accept zero assertions.", this.stack );
      }

      var i, assertion, a, b, time, li, ol,
          test = this,
          good = 0,
          bad = 0,
          tests = id( "qunit-tests" );

      this.runtime = +new Date() - this.started;
      config.stats.all += this.assertions.length;
      config.moduleStats.all += this.assertions.length;

      if ( tests ) {
        ol = document.createElement( "ol" );
        ol.className = "qunit-assert-list";

        for ( i = 0; i < this.assertions.length; i++ ) {
          assertion = this.assertions[i];

          li = document.createElement( "li" );
          li.className = assertion.result ? "pass" : "fail";
          li.innerHTML = assertion.message || ( assertion.result ? "okay" : "failed" );
          ol.appendChild( li );

          if ( assertion.result ) {
            good++;
          } else {
            bad++;
            config.stats.bad++;
            config.moduleStats.bad++;
          }
        }

        // store result when possible
        if ( QUnit.config.reorder && defined.sessionStorage ) {
          if ( bad ) {
            sessionStorage.setItem( "qunit-test-" + this.module + "-" + this.testName, bad );
          } else {
            sessionStorage.removeItem( "qunit-test-" + this.module + "-" + this.testName );
          }
        }

        if ( bad === 0 ) {
          addClass( ol, "qunit-collapsed" );
        }

        // `b` initialized at top of scope
        b = document.createElement( "strong" );
        b.innerHTML = this.nameHtml + " <b class='counts'>(<b class='failed'>" + bad + "</b>, <b class='passed'>" + good + "</b>, " + this.assertions.length + ")</b>";

        addEvent(b, "click", function() {
          var next = b.parentNode.lastChild,
              collapsed = hasClass( next, "qunit-collapsed" );
          ( collapsed ? removeClass : addClass )( next, "qunit-collapsed" );
        });

        addEvent(b, "dblclick", function( e ) {
          var target = e && e.target ? e.target : window.event.srcElement;
          if ( target.nodeName.toLowerCase() === "span" || target.nodeName.toLowerCase() === "b" ) {
            target = target.parentNode;
          }
          if ( window.location && target.nodeName.toLowerCase() === "strong" ) {
            window.location = QUnit.url({ testNumber: test.testNumber });
          }
        });

        // `time` initialized at top of scope
        time = document.createElement( "span" );
        time.className = "runtime";
        time.innerHTML = this.runtime + " ms";

        // `li` initialized at top of scope
        li = id( this.id );
        li.className = bad ? "fail" : "pass";
        li.removeChild( li.firstChild );
        a = li.firstChild;
        li.appendChild( b );
        li.appendChild( a );
        li.appendChild( time );
        li.appendChild( ol );

      } else {
        for ( i = 0; i < this.assertions.length; i++ ) {
          if ( !this.assertions[i].result ) {
            bad++;
            config.stats.bad++;
            config.moduleStats.bad++;
          }
        }
      }

      runLoggingCallbacks( "testDone", QUnit, {
        name: this.testName,
        module: this.module,
        failed: bad,
        passed: this.assertions.length - bad,
        total: this.assertions.length,
        runtime: this.runtime,
        // DEPRECATED: this property will be removed in 2.0.0, use runtime instead
        duration: this.runtime
      });

      QUnit.reset();

      config.current = undefined;
    },

    queue: function() {
      var bad,
          test = this;

      synchronize(function() {
        test.init();
      });
      function run() {
        // each of these can by async
        synchronize(function() {
          test.setup();
        });
        synchronize(function() {
          test.run();
        });
        synchronize(function() {
          test.teardown();
        });
        synchronize(function() {
          test.finish();
        });
      }

      // `bad` initialized at top of scope
      // defer when previous test run passed, if storage is available
      bad = QUnit.config.reorder && defined.sessionStorage &&
          +sessionStorage.getItem( "qunit-test-" + this.module + "-" + this.testName );

      if ( bad ) {
        run();
      } else {
        synchronize( run, true );
      }
    }
  };

// `assert` initialized at top of scope
// Assert helpers
// All of these must either call QUnit.push() or manually do:
// - runLoggingCallbacks( "log", .. );
// - config.current.assertions.push({ .. });
  assert = QUnit.assert = {
    /**
     * Asserts rough true-ish result.
     * @name ok
     * @function
     * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
     */
    ok: function( result, msg ) {
      if ( !config.current ) {
        throw new Error( "ok() assertion outside test context, was " + sourceFromStacktrace(2) );
      }
      result = !!result;
      msg = msg || ( result ? "okay" : "failed" );

      var source,
          details = {
            module: config.current.module,
            name: config.current.testName,
            result: result,
            message: msg
          };

      msg = "<span class='test-message'>" + escapeText( msg ) + "</span>";

      if ( !result ) {
        source = sourceFromStacktrace( 2 );
        if ( source ) {
          details.source = source;
          msg += "<table><tr class='test-source'><th>Source: </th><td><pre>" +
              escapeText( source ) +
              "</pre></td></tr></table>";
        }
      }
      runLoggingCallbacks( "log", QUnit, details );
      config.current.assertions.push({
        result: result,
        message: msg
      });
    },

    /**
     * Assert that the first two arguments are equal, with an optional message.
     * Prints out both actual and expected values.
     * @name equal
     * @function
     * @example equal( format( "Received {0} bytes.", 2), "Received 2 bytes.", "format() replaces {0} with next argument" );
     */
    equal: function( actual, expected, message ) {
      /*jshint eqeqeq:false */
      QUnit.push( expected == actual, actual, expected, message );
    },

    /**
     * @name notEqual
     * @function
     */
    notEqual: function( actual, expected, message ) {
      /*jshint eqeqeq:false */
      QUnit.push( expected != actual, actual, expected, message );
    },

    /**
     * @name propEqual
     * @function
     */
    propEqual: function( actual, expected, message ) {
      actual = objectValues(actual);
      expected = objectValues(expected);
      QUnit.push( QUnit.equiv(actual, expected), actual, expected, message );
    },

    /**
     * @name notPropEqual
     * @function
     */
    notPropEqual: function( actual, expected, message ) {
      actual = objectValues(actual);
      expected = objectValues(expected);
      QUnit.push( !QUnit.equiv(actual, expected), actual, expected, message );
    },

    /**
     * @name deepEqual
     * @function
     */
    deepEqual: function( actual, expected, message ) {
      QUnit.push( QUnit.equiv(actual, expected), actual, expected, message );
    },

    /**
     * @name notDeepEqual
     * @function
     */
    notDeepEqual: function( actual, expected, message ) {
      QUnit.push( !QUnit.equiv(actual, expected), actual, expected, message );
    },

    /**
     * @name strictEqual
     * @function
     */
    strictEqual: function( actual, expected, message ) {
      QUnit.push( expected === actual, actual, expected, message );
    },

    /**
     * @name notStrictEqual
     * @function
     */
    notStrictEqual: function( actual, expected, message ) {
      QUnit.push( expected !== actual, actual, expected, message );
    },

    "throws": function( block, expected, message ) {
      var actual,
          expectedOutput = expected,
          ok = false;

      // 'expected' is optional
      if ( !message && typeof expected === "string" ) {
        message = expected;
        expected = null;
      }

      config.current.ignoreGlobalErrors = true;
      try {
        block.call( config.current.testEnvironment );
      } catch (e) {
        actual = e;
      }
      config.current.ignoreGlobalErrors = false;

      if ( actual ) {

        // we don't want to validate thrown error
        if ( !expected ) {
          ok = true;
          expectedOutput = null;

          // expected is an Error object
        } else if ( expected instanceof Error ) {
          ok = actual instanceof Error &&
              actual.name === expected.name &&
              actual.message === expected.message;

          // expected is a regexp
        } else if ( QUnit.objectType( expected ) === "regexp" ) {
          ok = expected.test( errorString( actual ) );

          // expected is a string
        } else if ( QUnit.objectType( expected ) === "string" ) {
          ok = expected === errorString( actual );

          // expected is a constructor
        } else if ( actual instanceof expected ) {
          ok = true;

          // expected is a validation function which returns true is validation passed
        } else if ( expected.call( {}, actual ) === true ) {
          expectedOutput = null;
          ok = true;
        }

        QUnit.push( ok, actual, expectedOutput, message );
      } else {
        QUnit.pushFailure( message, null, "No exception was thrown." );
      }
    }
  };

  /**
   * @deprecated since 1.8.0
   * Kept assertion helpers in root for backwards compatibility.
   */
  extend( QUnit.constructor.prototype, assert );

  /**
   * @deprecated since 1.9.0
   * Kept to avoid TypeErrors for undefined methods.
   */
  QUnit.constructor.prototype.raises = function() {
    QUnit.push( false, false, false, "QUnit.raises has been deprecated since 2012 (fad3c1ea), use QUnit.throws instead" );
  };

  /**
   * @deprecated since 1.0.0, replaced with error pushes since 1.3.0
   * Kept to avoid TypeErrors for undefined methods.
   */
  QUnit.constructor.prototype.equals = function() {
    QUnit.push( false, false, false, "QUnit.equals has been deprecated since 2009 (e88049a0), use QUnit.equal instead" );
  };
  QUnit.constructor.prototype.same = function() {
    QUnit.push( false, false, false, "QUnit.same has been deprecated since 2009 (e88049a0), use QUnit.deepEqual instead" );
  };

// Test for equality any JavaScript type.
// Author: Philippe Rathé <prathe@gmail.com>
  QUnit.equiv = (function() {

    // Call the o related callback with the given arguments.
    function bindCallbacks( o, callbacks, args ) {
      var prop = QUnit.objectType( o );
      if ( prop ) {
        if ( QUnit.objectType( callbacks[ prop ] ) === "function" ) {
          return callbacks[ prop ].apply( callbacks, args );
        } else {
          return callbacks[ prop ]; // or undefined
        }
      }
    }

    // the real equiv function
    var innerEquiv,
    // stack to decide between skip/abort functions
        callers = [],
    // stack to avoiding loops from circular referencing
        parents = [],
        parentsB = [],

        getProto = Object.getPrototypeOf || function ( obj ) {
          /*jshint camelcase:false */
          return obj.__proto__;
        },
        callbacks = (function () {

          // for string, boolean, number and null
          function useStrictEquality( b, a ) {
            /*jshint eqeqeq:false */
            if ( b instanceof a.constructor || a instanceof b.constructor ) {
              // to catch short annotation VS 'new' annotation of a
              // declaration
              // e.g. var i = 1;
              // var j = new Number(1);
              return a == b;
            } else {
              return a === b;
            }
          }

          return {
            "string": useStrictEquality,
            "boolean": useStrictEquality,
            "number": useStrictEquality,
            "null": useStrictEquality,
            "undefined": useStrictEquality,

            "nan": function( b ) {
              return isNaN( b );
            },

            "date": function( b, a ) {
              return QUnit.objectType( b ) === "date" && a.valueOf() === b.valueOf();
            },

            "regexp": function( b, a ) {
              return QUnit.objectType( b ) === "regexp" &&
                // the regex itself
                  a.source === b.source &&
                // and its modifiers
                  a.global === b.global &&
                // (gmi) ...
                  a.ignoreCase === b.ignoreCase &&
                  a.multiline === b.multiline &&
                  a.sticky === b.sticky;
            },

            // - skip when the property is a method of an instance (OOP)
            // - abort otherwise,
            // initial === would have catch identical references anyway
            "function": function() {
              var caller = callers[callers.length - 1];
              return caller !== Object && typeof caller !== "undefined";
            },

            "array": function( b, a ) {
              var i, j, len, loop, aCircular, bCircular;

              // b could be an object literal here
              if ( QUnit.objectType( b ) !== "array" ) {
                return false;
              }

              len = a.length;
              if ( len !== b.length ) {
                // safe and faster
                return false;
              }

              // track reference to avoid circular references
              parents.push( a );
              parentsB.push( b );
              for ( i = 0; i < len; i++ ) {
                loop = false;
                for ( j = 0; j < parents.length; j++ ) {
                  aCircular = parents[j] === a[i];
                  bCircular = parentsB[j] === b[i];
                  if ( aCircular || bCircular ) {
                    if ( a[i] === b[i] || aCircular && bCircular ) {
                      loop = true;
                    } else {
                      parents.pop();
                      parentsB.pop();
                      return false;
                    }
                  }
                }
                if ( !loop && !innerEquiv(a[i], b[i]) ) {
                  parents.pop();
                  parentsB.pop();
                  return false;
                }
              }
              parents.pop();
              parentsB.pop();
              return true;
            },

            "object": function( b, a ) {
              /*jshint forin:false */
              var i, j, loop, aCircular, bCircular,
              // Default to true
                  eq = true,
                  aProperties = [],
                  bProperties = [];

              // comparing constructors is more strict than using
              // instanceof
              if ( a.constructor !== b.constructor ) {
                // Allow objects with no prototype to be equivalent to
                // objects with Object as their constructor.
                if ( !(( getProto(a) === null && getProto(b) === Object.prototype ) ||
                    ( getProto(b) === null && getProto(a) === Object.prototype ) ) ) {
                  return false;
                }
              }

              // stack constructor before traversing properties
              callers.push( a.constructor );

              // track reference to avoid circular references
              parents.push( a );
              parentsB.push( b );

              // be strict: don't ensure hasOwnProperty and go deep
              for ( i in a ) {
                loop = false;
                for ( j = 0; j < parents.length; j++ ) {
                  aCircular = parents[j] === a[i];
                  bCircular = parentsB[j] === b[i];
                  if ( aCircular || bCircular ) {
                    if ( a[i] === b[i] || aCircular && bCircular ) {
                      loop = true;
                    } else {
                      eq = false;
                      break;
                    }
                  }
                }
                aProperties.push(i);
                if ( !loop && !innerEquiv(a[i], b[i]) ) {
                  eq = false;
                  break;
                }
              }

              parents.pop();
              parentsB.pop();
              callers.pop(); // unstack, we are done

              for ( i in b ) {
                bProperties.push( i ); // collect b's properties
              }

              // Ensures identical properties name
              return eq && innerEquiv( aProperties.sort(), bProperties.sort() );
            }
          };
        }());

    innerEquiv = function() { // can take multiple arguments
      var args = [].slice.apply( arguments );
      if ( args.length < 2 ) {
        return true; // end transition
      }

      return (function( a, b ) {
        if ( a === b ) {
          return true; // catch the most you can
        } else if ( a === null || b === null || typeof a === "undefined" ||
            typeof b === "undefined" ||
            QUnit.objectType(a) !== QUnit.objectType(b) ) {
          return false; // don't lose time with error prone cases
        } else {
          return bindCallbacks(a, callbacks, [ b, a ]);
        }

        // apply transition with (1..n) arguments
      }( args[0], args[1] ) && innerEquiv.apply( this, args.splice(1, args.length - 1 )) );
    };

    return innerEquiv;
  }());

  /**
   * jsDump Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com |
   * http://flesler.blogspot.com Licensed under BSD
   * (http://www.opensource.org/licenses/bsd-license.php) Date: 5/15/2008
   *
   * @projectDescription Advanced and extensible data dumping for Javascript.
   * @version 1.0.0
   * @author Ariel Flesler
   * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
   */
  QUnit.jsDump = (function() {
    function quote( str ) {
      return "\"" + str.toString().replace( /"/g, "\\\"" ) + "\"";
    }
    function literal( o ) {
      return o + "";
    }
    function join( pre, arr, post ) {
      var s = jsDump.separator(),
          base = jsDump.indent(),
          inner = jsDump.indent(1);
      if ( arr.join ) {
        arr = arr.join( "," + s + inner );
      }
      if ( !arr ) {
        return pre + post;
      }
      return [ pre, inner + arr, base + post ].join(s);
    }
    function array( arr, stack ) {
      var i = arr.length, ret = new Array(i);
      this.up();
      while ( i-- ) {
        ret[i] = this.parse( arr[i] , undefined , stack);
      }
      this.down();
      return join( "[", ret, "]" );
    }

    var reName = /^function (\w+)/,
        jsDump = {
          // type is used mostly internally, you can fix a (custom)type in advance
          parse: function( obj, type, stack ) {
            stack = stack || [ ];
            var inStack, res,
                parser = this.parsers[ type || this.typeOf(obj) ];

            type = typeof parser;
            inStack = inArray( obj, stack );

            if ( inStack !== -1 ) {
              return "recursion(" + (inStack - stack.length) + ")";
            }
            if ( type === "function" )  {
              stack.push( obj );
              res = parser.call( this, obj, stack );
              stack.pop();
              return res;
            }
            return ( type === "string" ) ? parser : this.parsers.error;
          },
          typeOf: function( obj ) {
            var type;
            if ( obj === null ) {
              type = "null";
            } else if ( typeof obj === "undefined" ) {
              type = "undefined";
            } else if ( QUnit.is( "regexp", obj) ) {
              type = "regexp";
            } else if ( QUnit.is( "date", obj) ) {
              type = "date";
            } else if ( QUnit.is( "function", obj) ) {
              type = "function";
            } else if ( typeof obj.setInterval !== undefined && typeof obj.document !== "undefined" && typeof obj.nodeType === "undefined" ) {
              type = "window";
            } else if ( obj.nodeType === 9 ) {
              type = "document";
            } else if ( obj.nodeType ) {
              type = "node";
            } else if (
            // native arrays
                toString.call( obj ) === "[object Array]" ||
                  // NodeList objects
                    ( typeof obj.length === "number" && typeof obj.item !== "undefined" && ( obj.length ? obj.item(0) === obj[0] : ( obj.item( 0 ) === null && typeof obj[0] === "undefined" ) ) )
                ) {
              type = "array";
            } else if ( obj.constructor === Error.prototype.constructor ) {
              type = "error";
            } else {
              type = typeof obj;
            }
            return type;
          },
          separator: function() {
            return this.multiline ?	this.HTML ? "<br />" : "\n" : this.HTML ? "&nbsp;" : " ";
          },
          // extra can be a number, shortcut for increasing-calling-decreasing
          indent: function( extra ) {
            if ( !this.multiline ) {
              return "";
            }
            var chr = this.indentChar;
            if ( this.HTML ) {
              chr = chr.replace( /\t/g, "   " ).replace( / /g, "&nbsp;" );
            }
            return new Array( this.depth + ( extra || 0 ) ).join(chr);
          },
          up: function( a ) {
            this.depth += a || 1;
          },
          down: function( a ) {
            this.depth -= a || 1;
          },
          setParser: function( name, parser ) {
            this.parsers[name] = parser;
          },
          // The next 3 are exposed so you can use them
          quote: quote,
          literal: literal,
          join: join,
          //
          depth: 1,
          // This is the list of parsers, to modify them, use jsDump.setParser
          parsers: {
            window: "[Window]",
            document: "[Document]",
            error: function(error) {
              return "Error(\"" + error.message + "\")";
            },
            unknown: "[Unknown]",
            "null": "null",
            "undefined": "undefined",
            "function": function( fn ) {
              var ret = "function",
              // functions never have name in IE
                  name = "name" in fn ? fn.name : (reName.exec(fn) || [])[1];

              if ( name ) {
                ret += " " + name;
              }
              ret += "( ";

              ret = [ ret, QUnit.jsDump.parse( fn, "functionArgs" ), "){" ].join( "" );
              return join( ret, QUnit.jsDump.parse(fn,"functionCode" ), "}" );
            },
            array: array,
            nodelist: array,
            "arguments": array,
            object: function( map, stack ) {
              /*jshint forin:false */
              var ret = [ ], keys, key, val, i;
              QUnit.jsDump.up();
              keys = [];
              for ( key in map ) {
                keys.push( key );
              }
              keys.sort();
              for ( i = 0; i < keys.length; i++ ) {
                key = keys[ i ];
                val = map[ key ];
                ret.push( QUnit.jsDump.parse( key, "key" ) + ": " + QUnit.jsDump.parse( val, undefined, stack ) );
              }
              QUnit.jsDump.down();
              return join( "{", ret, "}" );
            },
            node: function( node ) {
              var len, i, val,
                  open = QUnit.jsDump.HTML ? "&lt;" : "<",
                  close = QUnit.jsDump.HTML ? "&gt;" : ">",
                  tag = node.nodeName.toLowerCase(),
                  ret = open + tag,
                  attrs = node.attributes;

              if ( attrs ) {
                for ( i = 0, len = attrs.length; i < len; i++ ) {
                  val = attrs[i].nodeValue;
                  // IE6 includes all attributes in .attributes, even ones not explicitly set.
                  // Those have values like undefined, null, 0, false, "" or "inherit".
                  if ( val && val !== "inherit" ) {
                    ret += " " + attrs[i].nodeName + "=" + QUnit.jsDump.parse( val, "attribute" );
                  }
                }
              }
              ret += close;

              // Show content of TextNode or CDATASection
              if ( node.nodeType === 3 || node.nodeType === 4 ) {
                ret += node.nodeValue;
              }

              return ret + open + "/" + tag + close;
            },
            // function calls it internally, it's the arguments part of the function
            functionArgs: function( fn ) {
              var args,
                  l = fn.length;

              if ( !l ) {
                return "";
              }

              args = new Array(l);
              while ( l-- ) {
                // 97 is 'a'
                args[l] = String.fromCharCode(97+l);
              }
              return " " + args.join( ", " ) + " ";
            },
            // object calls it internally, the key part of an item in a map
            key: quote,
            // function calls it internally, it's the content of the function
            functionCode: "[code]",
            // node calls it internally, it's an html attribute value
            attribute: quote,
            string: quote,
            date: quote,
            regexp: literal,
            number: literal,
            "boolean": literal
          },
          // if true, entities are escaped ( <, >, \t, space and \n )
          HTML: false,
          // indentation unit
          indentChar: "  ",
          // if true, items in a collection, are separated by a \n, else just a space.
          multiline: true
        };

    return jsDump;
  }());

  /*
   * Javascript Diff Algorithm
   *  By John Resig (http://ejohn.org/)
   *  Modified by Chu Alan "sprite"
   *
   * Released under the MIT license.
   *
   * More Info:
   *  http://ejohn.org/projects/javascript-diff-algorithm/
   *
   * Usage: QUnit.diff(expected, actual)
   *
   * QUnit.diff( "the quick brown fox jumped over", "the quick fox jumps over" ) == "the  quick <del>brown </del> fox <del>jumped </del><ins>jumps </ins> over"
   */
  QUnit.diff = (function() {
    /*jshint eqeqeq:false, eqnull:true */
    function diff( o, n ) {
      var i,
          ns = {},
          os = {};

      for ( i = 0; i < n.length; i++ ) {
        if ( !hasOwn.call( ns, n[i] ) ) {
          ns[ n[i] ] = {
            rows: [],
            o: null
          };
        }
        ns[ n[i] ].rows.push( i );
      }

      for ( i = 0; i < o.length; i++ ) {
        if ( !hasOwn.call( os, o[i] ) ) {
          os[ o[i] ] = {
            rows: [],
            n: null
          };
        }
        os[ o[i] ].rows.push( i );
      }

      for ( i in ns ) {
        if ( hasOwn.call( ns, i ) ) {
          if ( ns[i].rows.length === 1 && hasOwn.call( os, i ) && os[i].rows.length === 1 ) {
            n[ ns[i].rows[0] ] = {
              text: n[ ns[i].rows[0] ],
              row: os[i].rows[0]
            };
            o[ os[i].rows[0] ] = {
              text: o[ os[i].rows[0] ],
              row: ns[i].rows[0]
            };
          }
        }
      }

      for ( i = 0; i < n.length - 1; i++ ) {
        if ( n[i].text != null && n[ i + 1 ].text == null && n[i].row + 1 < o.length && o[ n[i].row + 1 ].text == null &&
            n[ i + 1 ] == o[ n[i].row + 1 ] ) {

          n[ i + 1 ] = {
            text: n[ i + 1 ],
            row: n[i].row + 1
          };
          o[ n[i].row + 1 ] = {
            text: o[ n[i].row + 1 ],
            row: i + 1
          };
        }
      }

      for ( i = n.length - 1; i > 0; i-- ) {
        if ( n[i].text != null && n[ i - 1 ].text == null && n[i].row > 0 && o[ n[i].row - 1 ].text == null &&
            n[ i - 1 ] == o[ n[i].row - 1 ]) {

          n[ i - 1 ] = {
            text: n[ i - 1 ],
            row: n[i].row - 1
          };
          o[ n[i].row - 1 ] = {
            text: o[ n[i].row - 1 ],
            row: i - 1
          };
        }
      }

      return {
        o: o,
        n: n
      };
    }

    return function( o, n ) {
      o = o.replace( /\s+$/, "" );
      n = n.replace( /\s+$/, "" );

      var i, pre,
          str = "",
          out = diff( o === "" ? [] : o.split(/\s+/), n === "" ? [] : n.split(/\s+/) ),
          oSpace = o.match(/\s+/g),
          nSpace = n.match(/\s+/g);

      if ( oSpace == null ) {
        oSpace = [ " " ];
      }
      else {
        oSpace.push( " " );
      }

      if ( nSpace == null ) {
        nSpace = [ " " ];
      }
      else {
        nSpace.push( " " );
      }

      if ( out.n.length === 0 ) {
        for ( i = 0; i < out.o.length; i++ ) {
          str += "<del>" + out.o[i] + oSpace[i] + "</del>";
        }
      }
      else {
        if ( out.n[0].text == null ) {
          for ( n = 0; n < out.o.length && out.o[n].text == null; n++ ) {
            str += "<del>" + out.o[n] + oSpace[n] + "</del>";
          }
        }

        for ( i = 0; i < out.n.length; i++ ) {
          if (out.n[i].text == null) {
            str += "<ins>" + out.n[i] + nSpace[i] + "</ins>";
          }
          else {
            // `pre` initialized at top of scope
            pre = "";

            for ( n = out.n[i].row + 1; n < out.o.length && out.o[n].text == null; n++ ) {
              pre += "<del>" + out.o[n] + oSpace[n] + "</del>";
            }
            str += " " + out.n[i].text + nSpace[i] + pre;
          }
        }
      }

      return str;
    };
  }());

// For browser, export only select globals
  if ( typeof window !== "undefined" ) {
    extend( window, QUnit.constructor.prototype );
    window.QUnit = QUnit;
  }

// For CommonJS environments, export everything
  if ( typeof module !== "undefined" && module.exports ) {
    module.exports = QUnit;
  }


// Get a reference to the global object, like window in browsers
}( (function() {
      return this;
    })() ));
